CN107428376A - For vehicle side bar and include the vehicle of such side bar - Google Patents
For vehicle side bar and include the vehicle of such side bar Download PDFInfo
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- CN107428376A CN107428376A CN201680016434.8A CN201680016434A CN107428376A CN 107428376 A CN107428376 A CN 107428376A CN 201680016434 A CN201680016434 A CN 201680016434A CN 107428376 A CN107428376 A CN 107428376A
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- unit
- vehicle
- side bar
- central core
- axis
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R3/00—Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
- B60R3/002—Running boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
A kind of side bar of vehicle (2), the vehicle and the side bar (2), which include a principal elongation axis, a width axis (Y) and a height axis (Z), a low portion and a upper part, the side bar (2), also to be included：One central core (3), the central core include the length along principal elongation axis extension and the height along the height axis (Z) extension；Two hollow units (4,5), the unit (4,5) extend along the length of the central core (3), and it is disposed on the side and opposite side of the central core (3), so that outside of the unit (4) than another unit (5) closer to the vehicle (1), and cross section of the unit on the principal elongation axis forms a closed polygon in the length of the central core (3)；And two flanges (6), the flange protrude from the low portion and upper part of the side bar (2).
Description
This application claims the rights and interests for enjoying in n ° 1552203 of the french patent application submitted on March 17th, 2015.
Present disclosure is related to the structure division used in vehicle frame is manufactured, more particularly to the side bar of automobile body
(rocker), it is directed to the vehicle for including such side bar.
Background technology
Bending strength performance is of crucial importance for the side structure (known terms " side bar ") of the central body bottom of vehicle
, so that it is guaranteed that protecting Vehicular occupant in the case of the side impaction for causing side bar to bend.
Many side bars are known.For example, document：EP0619215、WO2012095991、US2013/0140854、
WO2013/076818 and US8439430.
Nevertheless, these documents are all not disclosed in and realize what is satisfactorily compromised between bending strength and Mass lost
Automobile body polycrystalline substance.
In the market exist more reduce vehicle frame quality with reduce fuel consumption without reduce vehicle frame
Mechanical performance needs.
The purpose of present disclosure is to provide side bar and includes the vehicle of such side bar, and the side bar is in bending strength
Aspect improvement mechanically performance ensures the protection to Vehicular occupant, while has minimum mass, particularly in terms of fuel consumption
Ensure the optimum performance of vehicle.
The content of the invention
Purpose mentioned above is realized according to claim 1.
In the first aspect, there is provided the vehicle including side bar.The vehicle and the side bar include：One principal elongation axle
Line, a width axis and a height axis, a low portion and a upper part.The side bar also includes：One
Central core, the central core include what is extended along the length of principal elongation axis extension and along the height axis
Highly；And two hollow units, length extension of the unit along the central core, and it is disposed in the central nucleus
On the side and opposite side of the heart so that a unit, closer to the outside of the vehicle, and causes described than another unit
Cross section of the unit on the principal elongation axis forms a closed polygon in the length of the central core.The side
Beam also includes two flanges, and the flange protrudes from the low portion and upper part of the side bar, wherein the unit includes
The height extended along the height axis, and the summation of the height of described two units is no more than described two flanges are separated
The central core height.The side bar is adapted to be so that when the side bar is subjected to by applying along the width axes
Line or when making every effort to achieve the bending built of height axis sensing, the side bar is positioned between described two units including one
Neutral axis of elongation, and the neutral axis of elongation defines the first area through Tensile of the side bar and the side bar
Through compressed second area.At least the 80% of one unit is positioned in the first area, and another unit is extremely
Few 80% is positioned in the second area.And it is arranged to the unit closest to the outside of the vehicle to be oriented to
Upper part than another unit closer to the vehicle.
According to the fact in this respect, vehicle includes such side bar, particularly it is arranged to closest to the vehicle
Outside unit be oriented to than another unit closer to the vehicle upper part the fact with the unit its
His feature, which combines, to be caused, compared with the known structure with phase homogenous quantities, when the side bar deforms maximum deflection can be made strong
Degree and the energy increase absorbed.It also allows for limitation and penetrated with the object of the side collision of the vehicle.In addition, so
Side bar particularly suitable for, by apply from vehicle it is outside towards power that is internal, being pointed to along the width of vehicle (generally with separately
One vehicle side collision) create bending in the case of, can make the side bar bending strength and energy absorption maximize.
In certain embodiments, present disclosure can also be supplemented by following technical characteristic, can be individually or with it
What possible technical combinations uses following technical characteristic.
In certain embodiments, each unit can include the wall of the length transverse to the central core.It is described
Wall is relative to the height axis with an angle tilt between 90 ° and 105 °.
In certain embodiments, each unit can be formed by the way that reinforcer is assembled with the central core.
Under certain situation in these situations, there can be the elasticity than the central core with the reinforcer of central core assembling
The bigger elastic limit of the limit.
In certain embodiments, the side bar can be to form the center by the assembling of two lateral reinforcers
Core, described two units and the flange and formed.
In certain embodiments, the central core can include reinforcer, harder to become.In such cases
Certain situation under, the central core can include one along in the width axis and the unit it is each relatively
The lateral ribs of positioning, the sensing of the lateral ribs can cause the lateral ribs relatively to be protruded with the unit.
In certain embodiments, a whole unit can be positioned in the first area, and entirely another
Individual unit can be positioned in the second area.
In certain embodiments, the unit can be identical in shape.In other embodiments, the unit exists
Can be different in shape.In more embodiments, the unit can include step or table top.
In another aspect, present disclosure is related to the side bar for the vehicle being generally such as described above.The side bar
Including a central core, the central core is included along the length of principal elongation axis extension and along the altitude axis
The height of line extension.The side bar also includes two hollow units, and length of the unit along the central core extends, and
It is disposed on the side and opposite side of the central core so that a unit is than another unit closer to the vehicle
Outside, and cause cross section of the unit on the principal elongation axis one is formed in the length of the central core
Closed polygon.And the side bar also includes two flanges, low portion and upper part of the flange from the side bar
It is prominent.
Brief description of the drawings
The non-limiting example of present disclosure is described below with reference to the accompanying drawings, wherein：
- Fig. 1 shows the top view of the vehicle for including two side bars according to one embodiment；
- Fig. 2 shows the side view of the vehicle shown in Fig. 1, and figure 2 illustrates the side bar according to one embodiment；
- Fig. 3 a show the viewgraph of cross-section along principal elongation axis of the side bar according to one embodiment, in the side bar
It is upper to apply the power pointed to along width axis；
- Fig. 3 b show the viewgraph of cross-section along principal elongation axis of the side bar according to one embodiment, in the side bar
It is upper to apply the power pointed to along height axis；
- Fig. 4 a show the viewgraph of cross-section of the vehicle for including door and side bar according to one embodiment, and the vehicle will be by
Second vehicle collision；
- Fig. 4 b show to touch at the door of the vehicle and side depth of beam with Fig. 4 a identical views, wherein second car
Hit the vehicle；
- Fig. 4 c show not falling within the viewgraph of cross-section of the vehicle for including door and side bar below present disclosure, the car
Will be by the second vehicle collision；
- Fig. 4 d show to touch at the door of the vehicle and side depth of beam with Fig. 4 c identical views, wherein second car
Hit the vehicle；
- Fig. 5 shows the viewgraph of cross-section along principal elongation axis of the first variant of side bar；
- Fig. 6 shows the viewgraph of cross-section along principal elongation axis of the second variant of side bar；
- Fig. 7 shows the viewgraph of cross-section along principal elongation axis of the side bar according to first embodiment；
- Fig. 8 shows the viewgraph of cross-section along principal elongation axis of the side bar according to second embodiment；
- Fig. 9 shows the viewgraph of cross-section along principal elongation axis of the side bar according to 3rd embodiment；
- Figure 10 shows the viewgraph of cross-section along principal elongation axis of the side bar according to fourth embodiment；
- Figure 11 shows the viewgraph of cross-section along principal elongation axis of the side bar according to the 5th embodiment；
- Figure 12 show according to the side bar of sixth embodiment along principal elongation axis viewgraph of cross-section；
- Figure 13 shows the viewgraph of cross-section along principal elongation axis of side bar, to represent specific feature；
- Figure 14 a represent the viewgraph of cross-section according to axis A-A of Fig. 2 side bar；
- Figure 14 b represent the viewgraph of cross-section according to axis B-B of Fig. 2 side bar；
- Figure 14 c represent the viewgraph of cross-section according to axis C-C of Fig. 2 side bar；
- Figure 15 represents Figure 15 a, Figure 15 b of the embodiment of the side bar according to present disclosure；Side bar in background technology
Figure 15 c, Figure 15 d, Figure 15 e；And represent by applying the curve for making every effort to achieve the bending strength built pointed to along width axis
Figure 15 f；And the energy of the absorption of the different side bars shown in Figure 15 a- Figure 15 e.
Embodiment
As shown in Fig. 1 and 2, it can be included according to the vehicle 1 of present disclosure：
- principal elongation axis X, the length of vehicle 1 can extend along the principal elongation axis X；
- width axis Y, the width of vehicle 1 can extend along width axis Y；
- height axis Z, the height of vehicle can extend along height axis Z.
Vehicle 1 can also include two side bars 2, and the side bar 2 can be positioned in below the door of vehicle 1.Side bar 2 can
With including the length extended along principal elongation axis X, along width axis Y extension width and along height axis Z extend
Height.
Vehicle 1 can also include a upper part and a low portion.In normal operation position, vehicle 1 can be with
The roof being disposed in including one in the upper part of vehicle 1, and side bar 2 can be positioned in the low portion of vehicle 1.
Side bar 2 can also include a low portion and a upper part.When vehicle 1 is in normal operation position,
The low portion of side bar 2 may be oriented towards ground, and the upper part of side bar 2 may be oriented towards vehicle 1
Top.
As shown in Fig. 3 a and Fig. 3 b, side bar 2 can include：
- one central core 3, the central core 3 can include the length along the extension of principal elongation axis X, along width
The height spent the width of axis Y extensions and extended along height axis Z；
- two hollow units 4 and 5, the unit can extend along the length of central core 3, and can be disposed in
On the side and opposite side of central core 3 so that unit 4 can be than unit 5 closer to the outside of vehicle 1, and causes unit
4th, 5 cross section in principal elongation axis X can form a closed polygon in the length of central core.The unit can
With including the length extended along principal elongation axis X, along width axis Y extension width and along height axis Z extend
Height；And
- two flanges 6, the flange 6 can protrude from the low portion and upper part of side bar 2 so that side bar 2 can be with
Assembled with the other elements of the vehicle body of vehicle 1.
The summation of the height of two units 4 and 5 can be not more than the height for making the separated central core 3 of two flanges 6, make
It is not overlapping along height axis Z to obtain unit 4 and 5.
The unit 4 closest to the outside of vehicle 1 can be arranged to can be positioned so that than unit 5 closer to vehicle
Upper part.
Each unit 4 and 5 can be formed by several walls.More specifically, each unit 4 and 5 can include：
- at least one upper wall 41,42,51,52, the upper wall can be transverse to central core 3 and height axis Z
Wall, and the upper wall can form the part of the upper part closest to vehicle 1 of unit 4 or 5；
- at least one lower wall 43,44,53,54, the lower wall can be transverse to central core 3 and height axis Z
Wall, and the lower wall can form the part of the low portion closest to vehicle 1 of unit 4 or 5；
- at least one outer lateral sidewall 45,55, the outer lateral sidewall can be link upper wall 42,52 and lower wall 43,53
Wall, and the outer lateral sidewall can form the part of the outside closest to vehicle 1 of unit 4 or 5.Alternatively, outer lateral sidewall
45th, 55 can be parallel to central core 3, and/or parallel to height axis Z；And
- at least one interior lateral sidewall 46,56, the interior lateral sidewall can be link upper wall 42,52 and lower wall 44,54
Wall, and the interior lateral sidewall can form the part of the inside closest to vehicle 1 of unit 4 or 5.Alternatively, outer lateral sidewall
46th, 56 can be parallel to central core 3, and/or parallel to height axis Z and/or parallel to outer lateral sidewall 45,55.
In more embodiments, unit 4 and 5 can each form a quadrangle, for example, any irregular quadrilateral.
In more embodiments (embodiment shown in such as Fig. 3 a and Fig. 3 b) again, unit 4 and 5 can each form six faces
Body.The hexahedron can have two parallel sides.
The polygon formed by the unit 4 and 5 shown in Fig. 3 a and Fig. 3 b along the cross section of principal elongation axis X can have
With angled summit.However, the not limited to this embodiment of unit 4 and 5 of present disclosure, and unit 4 and 5 is along principal elongation axle
Line X cross section can form polygon, wherein the summit between face is rounding.In fact, on stress concentration or
In the case of manufacturing constraints, it may be desirable to form the summit of rounding.
When side bar 2 is subjected to pointing to and during from the outside of vehicle 1 towards the power F of inner orientation along width axis Y, side bar 2
It can be bent towards the inside of vehicle 1.During bending herein, side bar 2 can be divided into by being positioned between two units 4 and 5
The separated two different regions of neutral axis of elongation ψ, and the neutral axis of elongation can be perpendicular to power F.First area can
With through compressed, and second area can be through Tensile.
Neutral axis of elongation ψ can be positioned between unit 4 and 5 so that at least the 80% of unit 4 can be positioned in
In the first area, and worked with compress mode, and at least the 80% of unit 5 can be positioned in this second area, and with
Stretching mode works.
When side bar 2 is subjected to along height axis Z extensions and the power F ' oriented from the low portion of vehicle 1 towards upper part
When, side bar 2 can be bent towards the upper part of vehicle 1.During bending herein, the side bar can be divided into by being positioned at two
Two separated a neutral axis of elongation ψ ' between unit 4 and 5 different regions, and the neutral axis of elongation can be vertical
In power F '.First area can be through compressed, and second area can be through Tensile.
Neutral axis of elongation ψ ' can be positioned between unit 4 and 5 so that at least the 80% of unit 4 can be positioned
Worked in the first area, and with compress mode, and at least the 80% of unit 5 can be positioned in this second area, and
Worked with stretching mode.
In embodiment, for making every effort to achieve the bending built by applying along what height axis Z was pointed to, unit 4 and 5 can be only
It is positioned in single region so that unit 4 or 5 only can be worked with compress mode, and another unit can be only with stretching
Mode works.
When vehicle 1 is in use, side bar 2 can be subject primarily to by applying along width axis Y and height axis Z and
The bending built is made every effort to achieve mainly along what width axis Y was pointed to.Therefore, for these mechanical stresses, due to unit 4 or 5 at least
80% can with compress mode work and at least the 80% of another unit can be worked with stretching mode the fact, enabling
Best compromise is obtained between the energy absorption of maximum intensity, side bar 2 in side bar 2, quality and volume.
In fact, it has been discovered by the applicants that if two units all work with compress mode or with stretching mode, with one
Individual unit with compress mode work and another unit worked with stretching mode when compare, side bar collapses faster.
It is, thus, possible to manufacture has maximum deflection intensity and energy during the upper deformation of the side bar of prior art
Amount absorbs the side bar with phase homogenous quantities.
In addition, as shown in Fig. 4 a and Fig. 4 b, because unit 4 is arranged to closest to the outside of vehicle 1 and is determined
Position into than unit 5 closer to vehicle 1 upper part the fact, enabling be limited at the height of a D and the side of vehicle
Second vehicle 9 of collision penetrates.
In fact, in the power applied by the second vehicle 9 and more particularly through the bumper 90 of second vehicle 9
Under the influence of, the door D of vehicle 1 can be promoted inside towards vehicle 1.Because unit 4 can be positioned so that towards the outer of vehicle 1
Portion and upper part, in door towards during the internal modification of vehicle, it can be limited in terms of the Men Qi deformations by unit 4.D on the door
The such limitation moved towards the inside of vehicle 1 makes it possible to limit inwardly penetrating for the vehicle 1, and this is important safety
Factor.
As shown in Fig. 4 c and Fig. 4 d, if unit 4 not in this position, for example, unit 4 be oriented to closer to
The inside of vehicle, then door will be bigger towards penetrating for the inside of vehicle, and this is due to only later just in door towards the inside of vehicle 1
The door is limited in terms of deformation.In fact, as that can see in figure 4d, be oriented to towards the outside of vehicle 1 when unit 4 and
During upper part the second vehicle 9 and more specifically bumper 90 start its penetrate the restricted distance of aspect with when unit 4 not
It is oriented to towards the second vehicle 9 when the outside of vehicle 1 and upper part and more specifically bumper 90 starts in its side of penetrating
A gap E between the restricted distance in face be present.
In fact, in most cases, the upper part of the side bar 2 of vehicle 1 can be positioned in and the second vehicle 9
At the identical of bumper 90 level (this model indeed according to the vehicle 9 of vehicle 1 and second and change).
Side bar 2 can be manufactured according at least two variants.
In the first manufacture variant, as shown in Figure 5, side bar 2 can be by assemble two lateral reinforcer P1 with
P2 manufactures.Two reinforcers P1 and P2 can include hollow space so that their component forms 3, two lists of central core
Member 4 and 5 and two flanges 6.Therefore, reinforcer P1 and P2 can each include at least one hollow space, described at least one
Individual hollow space interlocks along axis Z relative to the hollow space of another.
Alternatively, the part P1 and P2 can include several hollow spaces so that when reinforcer P1 and P2 are assembled,
The rigidity of central core 3 is bigger.
, as shown in Figure 6, can be by the way that at least two reinforcer R1 and R2 be assembled in into shape in the second manufacture variant
Cause to form unit 4 and 5 to manufacture side bar 2 on into the plate of central core 3 and flange 6.
Alternatively, reinforcer R1 and R2 can be the hat reinforcer for including a U-shaped main body and two lateral lips, and
Reinforcer R1 and R2 can be assembled into the plate to form central core 3 by its lateral lip.
Alternatively, unit 4 and 5 can be formed by assembling two Z-shaped reinforcers.
According to first embodiment, as shown in Figure 7, unit 4 and 5 can be opened along the vertical separation of central core 3.It is real
On border, a height of central core 3 between the lower wall 43 of unit 4 and the upper wall 51 of unit 5 be present.
Central core 3 and flange 6 (that is, can be formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
Plate on) perform the embodiment shown in Fig. 7.
However, it is also possible to according to the first of side bar 2 the manufacture variant (that is, by assembling two reinforcers to form center
Core 3, unit 4 and 5 and flange 6) perform this embodiment.
According to second embodiment, as shown in Figure 8, unit 4 and 5 can not be along the vertical separation of central core 3.It is real
On border, the height of central core 3 is not present between the lower wall 43 of unit 4 and the upper wall 51 of unit 5.
Central core 3 and flange 6 (that is, can be formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
Plate on) perform the embodiment shown in Fig. 8.
However, it is also possible to according to the first of side bar 2 the manufacture variant (that is, by assembling two reinforcers to form central nucleus
The heart 3, unit 4 and 5 and flange 6) perform this embodiment.
According to 3rd embodiment, as shown in Figure 9, unit 4 and 5 can have different width and/or height.It is actual
On, the upper wall 41 and lower wall 43 of unit 4 are more shorter than the upper wall 51 of unit 5 and the length of lower wall 53 in length, and unit 4 is outer
Side wall 45 and madial wall 46 are bigger than the outer wall 55 of unit 5 and the length of inwall 56 in length.
Difference in height and width difference between the unit 4 and 5 shown in Fig. 9 are not restricted.Can essentially
It is, for example, unit 5 both has the height bigger than unit 4, there is the length bigger than unit 4 again, or for example unit 4 has
The width bigger than unit 5, but with identical height.
The plate of central core 3 and flange 6 (that is, is formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
On) perform the embodiment shown in Fig. 9.
However, it is also possible to according to the first of side bar 2 the manufacture variant (that is, by assembling two reinforcers to form central nucleus
The heart 3, unit 4 and 5 and flange 6) perform this embodiment.
According to fourth embodiment, as shown in Figure 10, central core 3 can be inclined relative to height axis Z with angle beta
Tiltedly.In this embodiment, angle beta can be included between 0 ° and 30 °.
Central core 3 and flange 6 (that is, can be formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
Plate on) perform the embodiment shown in Figure 10.
However, it is also possible to according to the first of side bar 2 the manufacture variant (that is, by assembling two reinforcers to form center
Core 3, unit 4 and 5 and flange 6) perform this embodiment.
According to the 5th embodiment, as shown in Figure 11, the flange can tilt relative to height axis Z.
Figure 11 illustrates embodiment in, flange 6 can be parallel.However, flange 6 may not be it is parallel.
The orientation of flange 6 can be selected according to the assembling constraint of the vehicle body of side bar 2 to vehicle 1.
Central core 3 and flange 6 (that is, can be formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
Plate on) perform the embodiment shown in Figure 11.
However, it is also possible to according to the first of side bar 2 the manufacture variant (that is, by assembling two reinforcers to form center
Core 3, unit 4 and 5 and flange 60) perform this embodiment.
According to sixth embodiment, as shown in Figure 12, the flange can interlock along the width of side bar 2.In fact,
In this embodiment, central core 3 includes two reinforcers.In this embodiment, it is each including two in these reinforcers
Arm and a bottom, one of brachium is in another arm.
Central core 3, list (that is, can be formed by assembling two reinforcers according to the first of side bar 2 the manufacture variant
Member 4 and 5 and flange 6) perform the embodiment shown in Figure 12.
However, it is also possible to central core 3 (that is, is formed by the way that reinforcer is assembled according to the second of side bar 2 the manufacture variant
With on the plate of flange 6 to form unit 4 and 5) to perform this embodiment.
Above-disclosed 3rd embodiment, fourth embodiment, the 5th embodiment and sixth embodiment can be combined with each other,
It can be combined with above-disclosed first embodiment or second embodiment.In fact, first embodiment and second embodiment are phases
The embodiment mutually repelled.
As shown in Figure 13, central core 3 can include reinforcer so that it is bigger that the central core 3 is made into rigidity.
More specifically, central core 3 includes the lateral ribs 7 along each relative positioning in width axis Y and unit 4 and 5, this is lateral
Rib 7 can extend to so that it is relatively protruded with unit 4 and 5.However, it was found by the inventors that when the depth of lateral ribs 7 is
During 20% maximum of the depth of unit 4 or 5, the quality, rigidity and a unit 4 or 5 in central core 3 are with compress mode
Work and another unit obtain the compromise of enhancing between the fact that worked with stretching mode.Therefore, unit 4 or 5 is at least
80% is worked with compress mode, and the 80% of another unit 4 or 5 is worked with stretching mode.
As shown in Figure 13, each unit can include a wall extended laterally relative to the length of central core 3.
The wall can be tilted relative to height axis Z with angle [alpha], and the angle [alpha] can be between 90 ° and 105 °.
When the value of angle [alpha] is closer to 90 °, the material of any one formed in unit 4 or 5 becomes further away from neutrality
Shape axis ψ.In these cases, if material works (with compress mode further away from intermediate deformation axis ψ, the material
Or with stretching mode), therefore resist the deformation of side bar 2 and absorb energy.In addition, if angle [alpha] close to 90 °, then this is created
Build one by be reasonably resistant to along width axis Y point to power F section.But such power corresponds to side bar 2 and must supported
Anti- principal stress, because this corresponds to the pass side impaction of second vehicle to vehicle 1.
Figure 14 a, Figure 14 b, Figure 14 c are that the cross section along principal elongation axis X of a specific embodiment of side bar 2 regards
Figure.
As shown in these figures, in this embodiment, side bar 2 can include outline frame 8, as shown in these figures
, outline frame 8 can be formed by assembling two caps that can be assembled together.Outline frame 8 can wrap
Enclose central core 3 and unit 4 and 5, and the outline frame 8 can with the identical level of flange 6 at 3 groups of central core
Dress.
As that can see in Figure 14 a, side bar 2 can include first area, can be only in the first area roof side rail 2
Including outline frame 8, without central core 3 or unit 4 and 5.The first area can be positioned in a front portion of side bar 2
On point.
As that can see in Figure 14 b, side bar 2 can include second area, and side bar 2 can wrap on the first region
Include outline frame 8, central core 3 and unit 4,5.Central core 3 can be assembled by flange 6 and outline frame 8.Secondth area
Domain can be positioned in a middle body of side bar 2.Alternatively, the second area can prolong along the major part of side bar 2
Stretch.
As that can see in Figure 14 c, side bar 2 can include the 3rd region, can be wrapped in the 3rd region roof side rail 2
Include outline frame 8, central core 3 and only include unit 4.Central core 3 can be assembled by flange 6 and outline frame 8.This
After three regions can be positioned in one of side bar 2 on part.
Side bar 2 can be made up of metal (for example, steel or aluminium).Alternatively, side bar 2 can be made up of composite, for example,
It is made of epoxy resin mould and carbon-fibre stiffeners.
According to one embodiment, according to the second manufacture variant, central core 3 can be made by elastic limit ratio and be formed
The reinforcer R1 and R2 of unit 4 and the 5 weaker material of material are made.
In addition, central core 3 can also have the thickness smaller than reinforcer R1 and R2 thickness.
According to one embodiment, according to the first manufacture variant, part P1 and P2 can be concatenated by assembling two
(for example, passing through laser welding) together, the element with different-thickness manufacture.According to this embodiment possibility
Property, forming part a P1 or P2 two elements can be made up of different materials (for example, different grades of steel).
Finally, for all embodiments, a step (table top) can be included by forming the wall of unit 4 and 5 so that the wall
It is bigger to become rigidity.
As that can see in fig.15, particularly on Figure 15 f curve, the curve is shown according in the disclosure
Two embodiments (being shown in Figure 15 a and 15b) of the side bar 2 of appearance and according to three side bars of prior art (Figure 15 c,
Shown in Figure 15 d and Figure 15 e) between performance comparision, all side bars have identical quality, according to the side of present disclosure
Beam 2 has the bigger maximum deflection intensity of the side bar for making every effort to achieve the ratio prior art built pointed to by applying along width axis Y,
And similarly there is energy absorption more more preferable than the side bar of prior art.
In order to perform simulation, the side bar 2 shown in Figure 15 a can include the UTS-590 steel plates (elasticity that thickness is 0.8mm
The limit is 390Mpa), the steel plate forms central core 3, and the 22MnB5 steel that two thickness are 1.5mm can be assembled on the steel plate
Reinforcer R1 and R2 (elastic limit 1150Mpa).
The side bar 2 shown in Figure 15 b can include two reinforcer P1 and P2, and the reinforcer P1 and P2 can be assembled
To form central core 3 and unit 4 and 5.Part P1 and P2 can by thickness be 1.3mm 22MnB5 steel sheets (elastic limits
For 1150Mpa) formed.
The side bar shown in Figure 15 c can be formed by an outline frame, and reinforcer can be assembled in the outline frame
R3 so that they form unit.The outline frame can be made up of the component of the first cap 81 and the second cap 82, and this
One cap is made up of the UTS-590 steel (elastic limit 390MPa) that thickness is 0.8mm, and second cap is by thickness
0.8mm 22MnB5 steel is made.Reinforcer R3 can be the Z-shaped reinforcer formed by the 22MnB5 steel sheets that thickness is 1mm.This
The side bar of sample can correspond to known geometries.
The side bar shown in Figure 15 d can be formed by two reinforcers P3 and P4 component, to form a central nucleus
The heart, two units and two flanges.Part P3 and P4 can be made up of thickness of 1.4mm 22MnB5 steel sheets.Such side bar
It can correspond to known geometries.
The side bar shown in Figure 15 e can be formed only by an outline frame, and the outline frame is by the He of the first cap 81
The component of second cap is made, and first cap is made up of thickness of 1.2mm UTS-590 steel, second cap by
Thickness is made up of 1.4mm 22MnB5 steel.Such side bar can correspond to for well-known side bar in the prior art
Classical geometry.
The embodiment shown in Figure 15 a can have maximum deflection intensity (for by along width axis Y point to and
It is oriented to the bending from the inside of vehicle 1 towards outside power-F establishments), this is most at the time of maximum deflection (for power-F)
Macrobending intensity can be higher than the side bar shown in Figure 15 e by 90%.In addition, for power-F, the embodiment that is shown in Figure 15 a can be with
The energy absorption of energy absorption high 75% with the side bar than being shown in Figure 15 e.
The embodiment shown in Figure 15 a can have maximum deflection intensity (for by along width axis Y point to and
It is oriented to the outside bending towards internal power+F establishments from vehicle 1), this is most at the time of maximum deflection (for power+F)
Macrobending intensity can be higher than the side bar shown in Figure 15 e by 36%.In addition, for power+F, the embodiment that is shown in Figure 15 a can be with
The energy absorption of energy absorption high 20% with the side bar than being shown in Figure 15 e.
Although only disclosing multiple embodiments herein, other alternative solutions of the embodiment, remodeling, using and/
Or equivalent is possible.In addition, the combination that is possible to of described embodiment is also capped.Therefore, present disclosure
Scope should not be limited by specific embodiment, and should be only by being determined to the just deciphering of following claim.
Claims (12)
1. a kind of vehicle (1) of the side bar (2) including central body bottom, the vehicle (1) and the side bar (2) include：
One principal elongation axis (X), a width axis (Y) and a height axis (Z), a low portion and a top
Part, the side bar (2) also include：
- one central core (3), the central core are included along the length of the principal elongation axis (X) extension and along institute
State the height of height axis (Z) extension；
- two hollow units (4,5), the unit along the central core (3) length extension, and be disposed in it is described in
On the side and opposite side for entreating core (3) so that a unit (4) is than another unit (5) closer to the vehicle (1)
Outside, and cause cross section of the unit (4,5) on the principal elongation axis (X) in the length of the central core (3)
One closed polygon of upper formation；
- two flanges (6), the flange protrude from the low portion and upper part of the side bar (2)；
Wherein
- the unit (4,5) includes the height extended along the height axis (Z), and the height of described two units is total
With no more than by the height of the separated central core (3) of described two flanges (6)；
- the side bar (2) is adapted to be so that when the side bar is subjected to by applying along the width axis (Y) or the height
When spending the bending that the power (F, F ') that axis (Z) points to creates, the side bar is positioned in described two units (4,5) including one
Between neutral axis of elongation (ψ, ψ '), and the neutral axis of elongation (ψ, ψ ') defines first through Tensile of the side bar
Region and the side bar through compressed second area, and at least the 80% of a unit (4,5) is positioned in described first
In region, and at least the 80% of another unit (4,5) is positioned in the second area；
- the unit (4,5) being arranged to closest to the outside of the vehicle (1) is oriented to than another unit (4,5) more
Close to the upper part of the vehicle (1).
2. vehicle (1) according to claim 1, wherein each unit (4,5) includes one transverse to the central core
(3) wall (41,42,43,44,51,52,53,54) of length, the wall (41,42,43,44,51,52,53,54) relative to
The height axis (Z) is tilted with an angle (α) between 90 ° and 105 °.
3. vehicle (1) according to claim 1 or 2, wherein each unit (4,5) be by by a reinforcer (R1,
R2) formed with the central core (3) assembling.
4. vehicle (1) according to claim 3, wherein having with the reinforcer (R1, R2) of the central core (3) assembling
The elastic limit higher than the elastic limit of the central core (3).
5. vehicle (1) according to claim 1 or 2, wherein the side bar (2) is by assembling two lateral reinforcers
(P1, P2) is to form the central core (3), described two units (4,5) and the flange (6) and to be formed.
6. vehicle (1) according to any one of the preceding claims, wherein the central core (3) include reinforcer so that
It is bigger to obtain central core (3) rigidity.
7. vehicle (1) according to claim 6, wherein the central core (3) includes one along the width axis
(Y) with each lateral ribs (7) relatively positioned in the unit (4,5), lateral ribs (7) extension so as to the list
First (4,5) relatively protrude.
8. vehicle (1) according to any one of the preceding claims, wherein a whole unit (4,5) is positioned in institute
State in first area, and another whole unit (4,5) is positioned in the second area.
9. vehicle (1) according to any one of the preceding claims, wherein the unit (4,5) is identical in shape
's.
10. vehicle (1) according to any one of claim 1 to 8, wherein the unit (4,5) is different in shape
's.
11. vehicle (1) according to any one of the preceding claims, wherein the unit (4,5) includes step.
12. a kind of side bar (2) of vehicle (1) according to any one of claim 1 to 11, including：
- one central core (3), the central core are included along the length of the principal elongation axis (X) extension and along institute
State the height of height axis (Z) extension；
- two hollow units (4,5), the unit along the central core (3) length extension, and be disposed in it is described in
On the side and opposite side for entreating core (3) so that a unit (4) is than another unit (5) closer to the vehicle (1)
Outside, and cross section of the unit on the principal elongation axis (X) is formed in the length of the central core (3)
One closed polygon；
- two flanges (6), the flange protrude from the low portion and upper part of the side bar (2).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1552203 | 2015-03-17 | ||
| FR1552203 | 2015-03-17 | ||
| PCT/EP2016/055705 WO2016146694A1 (en) | 2015-03-17 | 2016-03-16 | Rockers for vehicles and vehicles comprising such rockers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107428376A true CN107428376A (en) | 2017-12-01 |
Family
ID=53404705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680016434.8A Pending CN107428376A (en) | 2015-03-17 | 2016-03-16 | For vehicle side bar and include the vehicle of such side bar |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10202150B2 (en) |
| EP (1) | EP3271237B1 (en) |
| JP (1) | JP6681912B2 (en) |
| CN (1) | CN107428376A (en) |
| ES (1) | ES2774440T3 (en) |
| WO (1) | WO2016146694A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10618483B2 (en) * | 2018-01-31 | 2020-04-14 | GM Global Technology Operations LLC | Multi-component composite energy-absorbing structure having a corrugated joint |
| DE102018212817B4 (en) * | 2018-08-01 | 2022-01-20 | Volkswagen Aktiengesellschaft | Body structure for a vehicle |
| WO2020225590A1 (en) * | 2019-05-07 | 2020-11-12 | Arcelormittal | Side sill part for an automotive vehicle |
| DE102020121094B3 (en) | 2020-08-11 | 2021-10-07 | Bayerische Motoren Werke Aktiengesellschaft | Body structure for a motor vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3271237A1 (en) | 2018-01-24 |
| WO2016146694A1 (en) | 2016-09-22 |
| US20180022392A1 (en) | 2018-01-25 |
| ES2774440T3 (en) | 2020-07-21 |
| JP2018507815A (en) | 2018-03-22 |
| JP6681912B2 (en) | 2020-04-15 |
| EP3271237B1 (en) | 2019-12-04 |
| US10202150B2 (en) | 2019-02-12 |
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